Assembling press



March 3, 1931. A. w. PHELPS 1,795,141

ASSEMBLING PRESS Filed Dec. 7, 1928 3 Sheets-Sheet 1 March 3, 1931 A. w.PHELPS 1,795,141

ASSEMBLING PRESS Filed Dec. '7. 1928 3 Sheets-Sheet 3 Patented Mar.3,1931

UNITED STATES PATENT OFFICE ALVA W. PHELPS; QF ANDERSON, INEDIANA;ASSIGNOR T DELCO-REMY CORPORATION,

' OF DAYTON, OHIO, A CORPORATION OF DELAWARE ASSEMBLIN G PRESSApplication filed December 7, 1928.

Thisiinvention :relates to a. machine for and a process of assemblingparts of atimer "and particularly to a machine tor and a process ofautomatically assembling the governor weight plate and the governorweight plate pins used inautomatic ignitiontimers.

. An'object of this invention is to press-lit or stake pins into aninsulating plate: This isaccomplished by insertinga group otpins intopin holdersmounted ina rotatable work support which is-intermittentlydriven. 11 plate with a plurality'ot apertures is placed over thepinsso'thatthe heads ofthe pins exctend'through certain of saidapertures. The

plate is supported ingthis'position on a plurality of resilientlylmounted supports .mounted-imrecesses provided therefor in the worksupport. Fromthis.pre assembled:po-

sition, the rotatable worksupport together uvith the pins and the plateare rotated to a work position where acrosshead forces the plate upon:the pins in a direction normal to the-plane otirotation of said worksupport.

lvlountedin the crosshead are a. plurality of ejectors which eject thepins from the crosshead as the erossheadi'ecedes from the work position.As the crosshead lets go of the a plate and the pins, they are raisedand carzriedto the sidewith therotatable work sup port. .By carrying.outtheabove process, a

better assembly is obtained inla shorter length of time w th less:labor, thereby 111 I creasingahe lifeof the assembly and reducing thecost of production.

Further objectsnnd advantages of the lipresent invention will beapparent fromthe following description,reference being had to Htheaccompanying drawings, wherein a preterred :t'orin of embodiment ofthe present invention is clearly shown.

In thedi'awings: Fig. 1 is a side elevation of theassembly. Fig. 2- is asectional View of the work table and a portionofthe crosshead takensubstantially along the lin'e'Q-fll otFig. 6. J

Figsh3and'5 are sectional views of the work support and the crossheadtakensubstantiallyalong thelines 3-3 and 55 respectively of Fig.1 2.

)4- ,is a view. similar, to Fig. oshowing Serial no. 324,340.

driving mechanism. In suitable journals in member 12 is mounted thecrank shaft 1% which has attached thereto the flywheel and pulley 15which may be driven from a belt or any other suitable driving means. Oncrank shaft let there is attached a crosshead 16,.t-he details of thisare not explained for the reason that this is all conventional and theinvention does not reside in this part ot the mechanism. Mounted on thecrosshead 16 is a tool carrying member 18 having mounted thereon areciprocating presser member 17. The crosshead 16 is guided with respectto the work table by a pair of leader pins 19 which are fixedly attachedto a base 21. Screw-threaded into has-2021 is a stud 22having a pair ofshoulders 2?; and 24, the shoulder 23 engaging the base 21. Mounted onthe stud 22-is the rotatable work support 25 which consists of a pair ofsubst-antially circular plates 26 and 27 secured together by sultablebolts 28. screw-threadedly engaging plate 26. The plates 26 and "27 andthe arm 30 are held in position. by

lock nuts 29. on thostud 22. Intermediate the work table 25 and the baseplate 21 is the oscillating arm 30 having a raised portion 31, theraised portion 31 cooperating with shoulders 23 and 24 in supprn'tingthowork table 25. Intermediate arm 30 and the stud 22 is a bronze or brassbushing 33 and intermediate plates 26-.and 27 and the stud 22 isa bronzeor brass bushing In the periphery ofplates 26 and-27 there are a numberof U-shaped recesses or notche v 36 having mounted therein .U-shapedmembers .37 made of hardened steel and fastened to the plates 26 and27Lby suitable bolts not 1 shown.

The means for intermittently,rotating the rotary worksupport consists ofthe arm upon which is pivotally mounted at 42 a I "pawl 40 havingadetent 41. To one side of the pawl 49 is a recess 43 supporting aspring 44 which urges the pawl towards the recess 39 in the U-shapedmember 37, the spring being attachedto the arm at 48.

Pivotally attached to the arm 30 is a rod 70 which is attached to achain 71 by means of a turnbuckle assembly 72, the chain pass- H l I ingover a pulley 4 8 and attached to a weignu 74 which urges the arm 30 ina clockwise direction as viewed inFig. 6. On the other end of arm 30 ispivotally attached a rod 80 connected to a chain'81 by a turnbuckle 82.he chain 81 is passed under a pulley 83 and-is attached to an arm 84which is secured to the reciprocating crosshead 16 by means of a pair ofbolts 85whereby the arm 30 is positively rotated in a counterclockwise'directionas viewed in Fig. 6 when the crosshead is being raised.

7 In Figs. 1 and 6 it may be readily seen that as the cross head movesdownwardly and upwardly, arm 30'will rotate in a clockwise di- V Vrection into the dot-dash position, due to the I force exerted by the weght 7 4- on the chain 71 and in a'counterrclockwise direction by iii)the chain, 81 intofull line position, respectively. Itwillbe' seenthatas the armf30 rotates in thecounter clockwise directionapproximately 15 degrees .from the dot-dash. position,,-pawlwill engagenotch 39 on the side of the work table 25, then rotating the work tablethrough an angle of 950 dei grees. l-Iere the work table is locked inposition by detent 51 on member 50, which is pivotally mountedion thebase 21 at 55, and

' is biased infa clockwise direction into notch gages member 61,. freelyrotating 61 in'a' counter-clockwise direction, as best seen in Fig. 8,"'Member 60, however, rotates past thepoint of engagement. of member 61,

3 39 by means of spring 54, having oneend attached to the base 21 by pin56 and the finember mounted on the arm 30 diametrically opposite pawl401 As the arm 30 re tates in a clockwise direction, member 60 entherebypermitting member 61 to be snapped back in a clockwise direction by aspring '62 secured to the base 21 by. a pin 162 and to member 61 by apin 262; As arm 30 rotates in a counter-clockwise direction, trip 60engages member 61'1noving 61 in a clockwise direction, whichcauses-member 50to also I rotate in the same direction as a shoulder 161on member 61 engages a pin 150 mounted in member 50. This releasingmechanism is so timed that detent 51' will be completely out ofengagement of the notch 36 when the pawl 40 engages another notch 39,thereby permitting the pawl 40 to rotate the table. In Fig. 6 it may bereadily seen that trip 60 is moved out of engagement with member 61 longbefore arm 30 has completed its rotation in a counter-clockwisedirectionp This permits member 50, by means of the spring 54, to urgedetent 51 into another notch 39 as arm 30 approaches its'limit ofrotation in the counter-clockwise direction. 7

Intermediate the work table assembly 25 and base plate 21 is an anvil 90which is directly underneath the member 17. The anvil 90 is bolted tothe base plate 21 by bolts 91 and 92 threadedly engaging the an. vil 90;Also bolted to the base pla-te 21 is the upright 93 whichhas mountedthereon a tubular member 94 provided with ahead 95 and locked inposition by means ofa nut 96, the external threads of thetubular member94 threadedly engaging thev upright 93. Throughthe tubular member 94 isa freely movable bolt 97 having mounted thereon a retarding member orbraking member 98 held in position by means of a nut 99.- Member 98 hasa concave surface; of substantially the same curvature as thecylindrical'plates 26 and 27. and the tubular member 94 is acompressionhelical spring 100. By adjustingthe sleeve 94, the pressure exerted bymember 98 against the rotatable work table 25 'may be varied.

In member 17 "there are a plurality of aligned apertures 105 which arealigned with recesses 106 in member 18. 7 Before assembling members 17and 18, the ejectors 107 and the springs 108 are inserted intotheseapertures, the ejectors 107 being acted upon by the springs 108 toeject the assembly fromt'he crosshead as the crosshead recedes fromtlieMounted intermediate the nut 99 operative position.- In plate 26thereare a V plate 26, pins 115 may beinserted into the tubular member andremain standing there. Each of the pins 115 in the parti'cular workpiece disclosed has ahead 116, a neckll'i and a shoulder 118. Thefunction of each of these is not described in this application for thereason that this article is'shown and claimed in the'copendingapplicationiof Carl -H. Kindl, Serial No. 80,714,filed January 12,

The resilient means forfsupporting" the work plate 120, which is bestseen in Fig.7.

consists of a pair of supporting members 125 I mountedin anaperture126in plate26 which recess 127 in plate 27.

. 115 into the members 111a.

7 Operation In this disclosure 12 groupsof pinholders 111 and112groupsof plate supporting members 125 have been provided in the Work table 25.Only two of these groups have been numbered, the remaining groups beingunnumbered for the sake of clearness. Group A, comprising pinsllla andsupporting members125a, is the group in the work assembling position.-When a group is in this position, the-operator during a rest period ofthe work support inserts a pair of pins After inserting the pins 115, heplaces a plate 120 on the .plate supporting members 125 in suchaposition that the pins 115 are in alignment with the.

apertures 121 in the plate 120. Each successive group receives a pair ofpins 115 and a plate 120 when they'reachthis position. The

pins 115.and theplate 120 are rotated in this pre-assembled positionwith the 'WOIk table in V a counter-clockwise direction until theyarrive at the position B diametrically opposite position A and directlyunderthe crosshead l6 andoverthe anvil 90. Here the plate 120 is forcedor pressed into the homeposition by the-cross head 116, as bestseen inFig. 5. v

Since the crosshead receives the pins 115 whichhave beenpermittedtoextend'into the recesses 109,'the'pinsand plate are ejected by members107 which are acted on by the compression springs 108. The plateandthepins will also be raised from the rotatable work support 25 and bytheplate supporting memhers 125. .From'this position the assembled unitis removed'from the wo'rktable 25 by a suitable blast of air which hasnot been shown -ent invention as herein disclosed, constitutes i apreferred. form, it is toibe understood that r -other forms might beadopted, all coming within the scope ofthe claims which follow.

What isclaimedis as follows: 51. A machine for press-fitting pins in agovernor weight plate having holes therein plate over the pins topress-fit the pinsinto for the pins comprising, in combination, a

rotary work table,.means for supporting the pins on said table,means forsupp'ortingithe the plate alignedwith the pins, reciprocatpins, saidreciprocating means forcing the the'plate, and :means for 'ejectingthe"ins fro'm" the crosshead-iafter :the pins have een I r 2. "4; machinefor staking pins in plates,

comprising, in combination, a rotary work table, means forintermittently rotating said work table, means for supporting the pinson'said table, resilient means for supporting a the plate abovesaidwtable, a reciprocating crosshead with recesses-aligned withthe:pins, said reciprocating -crosshead forcing the plate home therebystaking the pins in the plate, driving means for reciprocating the.crosshead, and means for ejecting the pins tating the work support,means for supporting the pins on said support, means for supporting theplate above the work support, said plate having apertures aligned witl:the

pins, reciprocating means for forcing the plate down over the pinsthereby press-fitting the'pinsto the plate,1means ifor drivingsaidreciprocating means, and a brake for said rotary table topreventexcessivemoveme'nt of the table.

4. A machine-according to claim 3 in which :the means for supporting thepins on: the

table, comprises a movable sleeve anounted in a recess in the worktable, said movable sleeve having a shouldercooperatingwith a i shoulderin said recess for limitingthe upward movement of said sleeve, resilientmeans for urging the said sleeveupward and a movably mountedcore 'in:the sleeve, the

diameter of the. core being substantially the diameter of the p1n,thecore-and sleeve cooperating in holding the pin, the core preventingdownwardmovement of the pin.

5. A machineaccording to claim 3-i1rwhich the means for intermittentlyrotating the work support includes an oscillating member driven in onedirection by the driving means for the reciprocating crossheadand aweight to bias the oscillating member in a direction opposite tosaidonedirection.

6. A machine for press-fittingpins in a plate comprising, incombination, a. rotary a work support, means for-intermittently rotatingsaid work support to'presentithe work to the operatingposition, meansfor retarding the motion of the work support, means for locking saidwork'support during the rest period, means mounted in said work supportfor supporting the pins, means for supporting the plate above said worksupport, and means for forcing-the plate over the pins to press-fitthe'pins in the plate.

7 A machine according to'claim 6 in which the rotary work support has aplurality of notches in the periphery, inwhich theinterniittentirotatingmeans cooperates with each notch iii-succession,andin which the locking means cooperates with another of said notchesdurlng the rest period.

,8. A machine according to claim Gairwhrch 'the rotarywork support has'a substantially I cylindrieal periphery concentric with the axis ofrotation,'a1rd inwhich the means for re- 'tarding the rotation of thework support inv cludes a spring urged brake with a concave surfacecooperating with the cylindrical periphery of the work support.

9. A machine according to claim 6 in which the rotary work support hasnotches in the periphery, and in which the locking means vincludes a dogengaging said notches andv a member actuated forrele'asing said dog,said "member being actuated'by the" means inter- 1 mittently rotatingsaid work support.

10. A machine according to claim 6-in.

which the rotary work support has notches in its periphery, and in whichthe locking uneans includes a dog for engaging one of said notches,resilient means urging said dog into one of said notches, and means forreleasing-said" dog, said last means being ac- 1 tuated by-the'meansintermittently rotating said Work'support.

' 11. A press comprising, in combination, a

rotary work support having substantially U shaped notches in theperiphery,U-shaped hardenedsteel members fixedlyattached in" saidU-shaped notches, an oscillating arm, a

' pawl'mounted on said arm so constructed and arranged as to engagesaidU-shaped mem bers, means for oscillating said arm whereby the pawlrotates the work support intermitoomprising, in combination, a movable;work support, means for moving said Work support pins on: said-worksupport,'mea ns for supporting a plate to be press-fitted upon said,

1 work support in working po'sition, a reciptently to -presentworkpieces to an operating position, and a reciprocating meanscooperat-'.ing with the work support for carrying out an operation on the workpiece.

v12; A. press for stakingpins 111 a plate,

intermittently,-: means for supportingthe pins, said means supportingthe plate so that the headset said pins extend through aper tures insaid plate, an-xanvil supporting the rocating crosshead with recessesaligned with the pins,'said crosshead; forcing the plate upon the pinsso as to press-fit the pins into the plate, and meansfor ejecting theassembled plate and pins from the crosshead asthe crosshead recedes fromwork ng peertion. v

13. Asn'iachine for press-fitting pins into' an insulating plate for usein automatlc.

timers comprising, in combination, a movable work support, means forsupporting a plurality ofpinsarranged in groups on said Work support,means for supporting a plurality of plates, each of said plates to bepress-fitted upon each group of pins, each plate being supported so thatthe heads of the pins in one group extend through apertures providedtherefor in said plates, areciprocating crosshead, means forv guidingthecrosshead so thatthe pins in one group of pins are'received 1nrecesses 1n the crosshead,

the crosshead cooperating with the Work sup port during a rest periodofsaid work support to press-fit the plate upon its group of 7 ins andmeans for e'ectin the ins and "plate from the crosshead as the crossheadrecedesfrom Working position,and means for movmgthe worksupport so as toposition another Plate'and group of pins in operative" position; g

14. A machine for" press-fitting pins lllilO' an insulating plate foruse in'automatic timers comprising, in combination, work holders,

each work holder supporting aplate haV- ing a plurality of apertures andsupporting a plurality of pins with the heads extending through theapertures in the plate, means for intermittently moving the Work holderalong a plane into'a-working position, means for forcing said plate in adirection nor- "mal to said plane so as'to' press-fit the'plate upon thepins. 1 15;The method of pressfitting pins into an insulating. plate forusein timers comprising'the steps of inserting pins into a work'holder,placing a plate on a'support so that the heads of the pins extendthrough apertures in saidplate, moving saidpins,

saidi plate and said work holder bodily along one plane'to awork'position, forcing the plate at right angles to said plane wherebythe plate is forced upon thepins.

16. The method of press-fitting pins into an insulating plate for use intimers com'pris 109 mg the steps of inserting the pins into Workholders, placing a-- plate on a support so that the heads of said pinsextend through apertures in the plate, movingthe plate and pins bodilyalong one plane to a work posi' tion, forcing the platealong a normal tosaid plane whereby the plate is'press-fitted upon said'pins', moving theplate and pins away from'the work position to permit'repeating theprocess upon another work plate 11 and group of pins.

, 17*. The method of press-fitting pins into an insulating plate'for usein timers comprising the steps of inserting pins into supports, placinga plate ona support so. that the heads of said pinsextend throughapertures in the plate, and pressing the plate upon the pins whereby thepins are press fitted into'the plate; I i

18. The method of press-fitting ing 1 5" support with a reciprocatingcross head, said cross head having a recess for receiving the pin, and apin aligning means mounted in said recess, said pin aligning means beingprovided With aconical shape recess cooperating with the end of the pinto properly align the pin With said recess.

20. In a machine for press-fitting pins into a support, comprising thecombination of a Work holder with a reciprocating cross head, said crosshead being provided with recesses for receiving the pins, and a springurged pin aligning and ejecting member mounted in each of said recesses,said member being pro vided With a conical shaped recess cooperatingWith the end of a pin to align the pin With the recess in the crosshead.

In testimony whereof I hereto aflix my signature.

ALVA W. PHELPS.

